7486 IC – Quad 2-Input Exclusive-OR Gate (XOR) – DIP-14

🔲 7486 IC – Quad 2-Input Exclusive-OR Gate (XOR) – DIP-14

The 7486 is a standard TTL logic IC that contains four independent 2-input Exclusive-OR (XOR) gates. These gates are ideal for digital logic circuits that require parity checking, controlled inverting, or logic comparisons. The XOR gate outputs HIGH only when the number of HIGH inputs is odd (i.e., inputs are different).

⚙️ Technical Specifications

📌 Pinout (DIP-14)

Each gate operates on the logic:

Y = A ⊕ B → Output is HIGH only when A ≠ B

🧠 Truth Table (For One XOR Gate)

🛠️ Applications

• Parity generation and checking

• Bitwise comparison

• Controlled inverters

• Digital signal processing

• Arithmetic circuits

🔌 Example Use with Arduino

You can use 7486 with Arduino to compare two digital inputs and send the output to an LED or logic analyzer.

// Arduino example to compare two inputs and show XOR result on output
const int inputA = 2;
const int inputB = 3;
const int outputXOR = 13;

void setup() {
  pinMode(inputA, INPUT);
  pinMode(inputB, INPUT);
  pinMode(outputXOR, OUTPUT);
}

void loop() {
  int a = digitalRead(inputA);
  int b = digitalRead(inputB);
  digitalWrite(outputXOR, a ^ b); // XOR operation
}

🎥 YouTube Tutorial